Just for clarity, the item in question isn't a rucksack.
It's more like a rectangular semi-rigid overnight bag, with handles and a shoulder strap. It has some padding, more than a cheap gig bag, less than an expensive one. But room to pack stuff around if you want, and several pockets.
There is a compartment in the base, so if you dropped it the contents above would have some protection.
PS I should add that this describes the one I have, but the one in the pic looks very similar.
Edited by malcolmbebb, 16 April 2013 - 02:16 PM.